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CVE-2023-28827

MEDIUM
5.9
CVSS Score
Published: September 10, 2024 at 09:33 AM UTC
Updated: June 17, 2026 at 05:48 AM UTC
12 products affected across 1 vendorSIMATIC HMI Comfort PanelsSIMATIC WinCC Runtime AdvancedTIM 1531 IRC

Using SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) by Siemens?

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-7 LTE (All versions < V3.5.20), SIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0) (All versions < V3.5.20), SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions), SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions), SIMATIC WinCC Runtime Advanced (All versions), SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.4.8), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.4.8). The web server of the affected devices do not properly handle certain requests, causing a timeout in the watchdog, which could lead to the clean up of pointers. This could allow a remote attacker to cause a denial of service condition in the system.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

SIMATIC CP 1242-7· Siemens
60%
v < V3.5.20
Affected range stops below V3.5.20, so it looks safe — our inference, not a vendor statement
SIMATIC CP 1243-1· Siemens
60%
v < V3.5.20
Affected range stops below V3.5.20, so it looks safe — our inference, not a vendor statement
SIMATIC CP 1243-1 DNP3· Siemens
60%
v < V3.5.20
Affected range stops below V3.5.20, so it looks safe — our inference, not a vendor statement
SIMATIC CP 1243-1 IEC· Siemens
60%
v < V3.5.20
Affected range stops below V3.5.20, so it looks safe — our inference, not a vendor statement
SIMATIC Cp 1243-7 LTE Firmware· Siemens
60%
v < V3.5.20
Affected range stops below V3.5.20, so it looks safe — our inference, not a vendor statement
SIMATIC Cp 1243-8 Irc Firmware· Siemens
60%
v < V3.5.20
Affected range stops below V3.5.20, so it looks safe — our inference, not a vendor statement
SIMATIC HMI Comfort Panels· Siemens
60%
All versions
SIMATIC IPC DiagBase· Siemens
60%
All versions
SIMATIC IPC DiagMonitor· Siemens
60%
All versions
SIMATIC WinCC Runtime Advanced· Siemens
60%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: [email protected]
https://cert-portal.siemens.com/productcert/html/ssa-423808.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.9MEDIUMsiemens
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-476

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